NodeMCU ESP8266 CH340 Wi-Fi Module

This ESP8266 NodeMCU CH340 WiFi Module with 4MB flash is ideal for IoT, automation, and wireless embedded projects.

• Built-in Wi-Fi SoC based on ESP8266 for seamless IoT connectivity
• Integrated CH340 USB-to-Serial converter for stable programming
• Breadboard-friendly NodeMCU design with accessible GPIO pins
• Supports Arduino IDE, Lua, and MicroPython development
• Low power consumption with deep sleep support
• Microcontroller: ESP8266EX
• USB Interface: CH340G USB-to-Serial
• Operating Voltage: 3.0V – 3.6V
• Input Voltage (Vin): 4.5V – 10V
• Digital I/O Pins: 11 (all interrupt/pwm/I2C/1-wire supported)
• Analog Input Pins: 1 (10-bit ADC)
• Clock Speed: 80 MHz / 160 MHz
• Flash Memory: 4MB (32Mb)
• Wi-Fi Standard: IEEE 802.11 b/g/n
• Frequency Range: 2.4 GHz – 2.5 GHz
• Security: WPA/WPA2
• Interface Support: UART, SPI, I2C (software), PWM
• Operating Temperature: -40°C to +125°C